135498457 has 4 divisors (see below), whose sum is σ = 136814080. Its totient is φ = 134182836.

The previous prime is 135498437. The next prime is 135498463. The reversal of 135498457 is 754894531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135498457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135498437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657657 + ... + 657862.

It is an arithmetic number, because the mean of its divisors is an integer number (34203520).

Almost surely, 2^135498457 is an apocalyptic number.

It is an amenable number.

135498457 is a deficient number, since it is larger than the sum of its proper divisors (1315623).

135498457 is a wasteful number, since it uses less digits than its factorization.

135498457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315622.

The product of its digits is 604800, while the sum is 46.

The square root of 135498457 is about 11640.3804491090. The cubic root of 135498457 is about 513.6233785149.

The spelling of 135498457 in words is "one hundred thirty-five million, four hundred ninety-eight thousand, four hundred fifty-seven".